Rock Island District / About / Offices / Emergency Management / Flood

NOTE: Information provided on this page will update only when the Rock Island District is activated for flood response.

Flood Information for the Rock Island District (FINAL Update: July 17, 2024)

Welcome to the U.S. Army Corps of Engineers, Rock Island District's Flood website. This site was developed to provide current and historical information regarding flooding in the upper Midwest. 

If you are in need of immediate assistance please contact the Emergency Operations Center 24-hour hotline at (309) 794-5101. If your phone call is not answered by a person, please leave a message and we will return your call in approximately 30 minutes or less. 

Please Note: The Corps of Engineers does not issue flood forecasts for any river, anywhere in the United States. The National Weather Service provides weather, hydrologic and climate forecasts and warnings for the United States. Rivergages.com, is a Corps-managed website that provides National Weather Service river forecasting information and can be reached by selecting the RiverGages graphic on the left.

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Recreation Area Status

Flood Forecasts at a Glance

Rock Island District Rainfall Summary

Observed Precipitation: The southern portions of the District (southeastern Missouri, southwestern Illinois) received 0.5-1 inch of rainfall. The rest of the District remained mostly dry.

Forecast Precipitation: The District is expected to receive little to no rainfall through the weekend.

Illinois and Mississippi River Status

Mississippi River: Six gages remain in major flood stage, six in moderate flood stage, and eight in minor flood stage. The Muscatine gage fell into moderate flood stage, and L&D 11 fell into minor flood stage in the last 24 hours. All gages on the MVR portion of the Mississippi River continue fall. Inflows from the tributaries downstream of L&D 14 are slowing recessions. Outflows from Lake Red Rock were reduced to help lower or possibly eliminate the tertiary bump downstream of L&D 19 shown in the modeling. Water levels are expected to continue falling with the lack of forecasted rain.

Illinois River: The Illinois River continues to maintain normal operations. The river is rising from Lockport through La Grange. The wickets remain down at La Grange and were lowered at Peoria yesterday. The significant rainfall from yesterday’s storms is causing rises on many of the tributary rivers. The gages at Lasalle and Starved Rock are forecasted to rise into moderate flood stage, and the gages at Dresden Island, Ottawa, and Valley City are forecasted to rise into action stage in the next few days.

Tributary River Status

The Joslin gage on the Rock River is in moderate flood stage and is forecasted to rise into major flood stage, and the Moline gage is also forecasted to rise into major flood stage. Numerous gages across the District are in or forecasted to rise to action stage. Two additional gages on the Rock (Illinois) River (Rockton and Byron) are in or forecasted to rise into moderate flood stage. Gages on the Wapsipinicon, Rock (Wisconsin and Illinois), Crawfish, Sugar, Pecatonica, Fox (Wisconsin and Illinois), Des Plaines, and Kankakee (Indiana) are in or forecasted to rise into minor flood stage, and several gages throughout the District are in or forecasted to rise into action stage.

Select a gage below for the current National Weather Service river forecast.
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 Cedar River Basin
 Des Moines River
 Illinois River
 Iowa River
 Upper Mississippi River

Reservoir Status

Saylorville Lake: The lake was at elevation 876.5 feet this morning and falling (-1.2 ft since yesterday), using 65.2% of the available flood storage. The outflow was held near 18,000 cfs this morning. The lake is expected to continue falling and be near 858.0 feet at the end of the two-week forecast period, using approximately 30% of its available flood storage.

Lake Red Rock: The lake was at elevation 758.0 feet this morning and falling (-0.1 feet since yesterday), using 26.7% of its available flood storage. The outflow was near 21,000 cfs and decreased to 15,000 cfs this morning. The lake crested yesterday at 758.3 feet, using 27.3% of its available flood storage. The lake is expected to crest today just over 758.0 feet, using 26.5% of its available flood storage.

Coralville Lake: The lake was at elevation 692.6 feet this morning and falling (-0.3 feet since yesterday), using 17.0% of the available flood storage. The outflow was held near 6,900 cfs this morning. The lake is expected to continue to fall and to return to conservation pool (683.0 feet) on July 30, using 0% of its available flood storage.

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Rock Island and St. Paul District Inundation Information

Zoom in on the map to see areas impacted by river levels.